Milk-pasteurizer.



Patented Mar. 19, 1918.

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Snom/1101 WILL-IAM w. Banner/r, or NIAGARA r'ALts, new Yoan.

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Specification of Letters Patent.

Patented Mar. 19', 1918@ Application filed November 19, 1917i. Serial No. 202,788.

To all whom t may concern.'

Be it known that l, ILLIAM XV. BARNUM, a citizen of the United States of America, residing at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful improvements in ltflill-Pasteiirizei's, of which the following is a specification.

This invention relates to certain new and useful. improvements in milk pasteurizers.

'The primary object of the invention is the provision of a pasteurizer especially adapted for use in sterilizing bottle liquids such as milk, the construction thereof being inexpensive and easy to manufacture but serviceable and eflicient in its use.

A further object of the invention is the provision of a device for sterilizing bottle liquids without the liability of loss by reason of bursting bottles, this result being accomplished by the perfect circulation of the sterilizing iuid resulting in an equal distribution of heat.

A still further object of the invention is the provision of a cabinet suitably insulated for retaining heat adapted for employment in carrying out a pasteurizing process and arranged with a support for the contents which serves the purpose of directing the circulation of heating medium for perfecting the sterilization by the accurate control of temperature.

Nith these general. objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing, and then claimed.

In the drawing forming a part of this application, and in which like reference characters designate corresponding parts throughout the several views,

Figure 1, is a horizontal sectional view through the device,

Fig. 2, is a vertical longitudinal sectional view through the lower portion thereof, and

Fig. 3, is a side view of the same, upon a reduced scale with parts broken away.

Referring more in detail to the drawing, a box or cabinet 10 is arranged having a suitable lid 11 while a space 12 is provided between the outer and inner walls 13 and 14 respectively, adapted for the reception of heat insulating material such as cork.

The box 10 is adapted to be filled with fiuid such as water through an inlet pipe 15 while the level thereof is adapted to be main tained constant as at 16 for immersing the bottles 17, and an overtiow pipe 18 being arranged at the water level and an outlet draw faucet 19 positioned therebeneath adjacent the bottom of the box.

A rack 20 is positioned upon the bottom 21 of the box being preferably formed of cypress with opposite side beams 22 spaced from the sides of the box and having a plurality of parallel slats 23 transversely secured thereon for mounting the bottles 17 spaced above the bottom 21. A. steam pipe 24k is arranged with a branch 25 extending through the rear wall of the box 10 and connectin g with a longitudinally arranged pipe 26 within the box 10 outwardly of the adjacent beam 29 and having L-shaped arms 27 at its opposite ends for arranging inturned nozzles 2S substantially centrally of the box in alinement with and pointing toward each other beneath the rack 20.

A direction plate 29 is diagonally arranged beneath the slats 23 having its opposite ends terminating at the ends of the rack at points upon relatively opposite sides of the nozzles 2S. Batlie plates 30 of relatively short length are arranged beneath the slats at opposite ends of the rack arranged parallel with the nozzle 28 with a baffle plate between each of the opposite beams 22 and one of the nozzles 28. The arms 27 pass through the beams with one of the arms passing through an end of the direction plate 29 and the other arm at the opposite end of the box passing through the adjacentv battle plate 30.

With the box filled with bottles 17, arranged upon the rack Q0, and with the box filled with water, to the point 16, an inflow of steam through the nozzles 28, results in sterilizing the contents of the bottles by the raising of the temperature of the water, to the desired degree and in the desired time. The provision of the slats 23 and the direction given to the injected steam by the direction and baffle plates beneath the rack 9.0 creates the proper circulation within the box 10, resulting in an even distribution of the heat for perfecting sterilization. The drawoff 19 is for removing the water to the level beneath the tops of the lower row of bottles 17 when pasteurization is completed, while the overflow 18 is constantly open and as the water expands, during heating, and augmented bythe condensation of steam, a cnstant slight outow is maintained there- Y liquids, is arranged, it being understood that the direction imparted to the steam from theA nozzles 28, which agitates the water without the employment of any mechanical circulating means constitutes the gist of my invention. Adjusting means 3l may be arranged for the nozzles 28 if desired, while it will be evident that the beams 22 and plates 29 and 30 which support the slats 23 above the bottom 21 may be either perforated or slotted, for accommodating the passing of the pipe therethrough. Also, while the preferred form of the device is herein set forth, it will be understood that minor changes may be made therein, without departing from the spirit and scope of the invention as claimed.

What I claim as new is y A pasteurizer comprising an insulated box, a rack positioned therein, upon the bottom thereof, including opposite parallel v(101114:: or this patent may be obtained for needle? beams spaced from the sides of the'box, a direction plate diagonally positioned between the said beams longitudinally of they box, terminating in the same planes as the said beams, baille plates arranged parallel with the beams at opposite sides and spaced Y plates, and transverse slats carried by saidbeams and plates, adapted for supporting articles to be sterilized, a water-inlet pipe adjacent the bottom of the boX, andan over-` 45 fiow pipe arranged at the normal water level therein.

In testimony whereof I-afEX my signature.

WILLIAM W. BARNUM.

five cents each, by addressing the Commissioner` of Patents.

Washington, D. C. 

